*{
    padding: 0;
    margin: 0;
}
/* qfPage */
.qf-page span{
    width: 30px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    background-color: #000;
    color: #fff;
    display: inline-block;
}
.qf-page span:hover{
    color: yellow;
    cursor: pointer;
}


 
/* qfDialog */
.qf-dialog{
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .5);
    position: fixed;
    z-index: 2;
    top: 0;
    left: 0;

    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
   
}
.box{
    width:300px;
    height: 400px;
    color: #000;
    background-color: #fff;
}
header{
    display: flex;
    height: 50px;
    justify-content: space-between;
}
main{
    height: 300px;
}
footer{
    height: 50px;
}


/* loading2 */
.qf-loading2{
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .5);
    position: fixed;
    z-index: 2;
    top: 0;
    left: 0;

    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 30px;
}


/* loading1 */
.qf-loading1{
    width: 80px;
    height: 40px;
    margin: 0 auto;
    margin-top:100px;
}
.qf-loading1 span{
    display: inline-block;
    width: 8px;
    height: 100%;
    border-radius: 4px;
    background: lightgreen;
    -webkit-animation: load 1s ease infinite;
}
@-webkit-keyframes load{
    0%,100%{
        height: 40px;
        background: lightgreen;
    }
    50%{
        height: 70px;
        margin: -15px 0;
        background: lightblue;
    }
}
.qf-loading1 span:nth-child(2){
    -webkit-animation-delay:0.2s;
}
.qf-loading1 span:nth-child(3){
    -webkit-animation-delay:0.4s;
}
.qf-loading1 span:nth-child(4){
    -webkit-animation-delay:0.6s;
}
.qf-loading1 span:nth-child(5){
    -webkit-animation-delay:0.8s;
}

.qf-nav-bar{
    width: 100%;
    height: 50px;
    color: #fff;
    background-color: #000;

    display: flex;
    justify-content: space-between;
    align-items: center;
}